Re: Matrox G400 Dualhead

From: Trevor Hemsley (Trevor-Hemsley@dial.pipex.com)
Date: Sat Mar 31 2001 - 11:01:59 EST

  • Next message: jerry: "tcgetattr fails in 2.4.3"

    On Sat, 31 Mar 2001 07:17:19, "Rafael E. Herrera"
    <raffo@neuronet.pitt.edu> wrote:

    > J Brook wrote:
    > >
    > > >With 2.4.2 it was working just fine.
    > >
    > > I have also noticed problems with the 2.4.3 release. I have a G450
    > > 32Mb, that I use in single-head mode. The console framebuffer runs
    > > fine at boot time, but when I load X (4.0.3 compiled with Matrox HAL
    > > library) and then return to the console, I get a blank screen (signal
    > > lost).
    >
    > In my case, when lilo boots my G450 on any video mode other than
    > 'normal', going into X and then back into console, leads to a blank
    > screen. I've observed this behavior in 2.2 and 2.4. Otherwise, I've no
    > problem using the card in single or dual head.

    I get this as well on my G200. From observation it appears that the
    refresh rate is being doubled when you exit X and that's why the
    console appears blank. On my system I normally use

    modprobe matroxfb vesa=263 fv=85

    to give a large text console. On return from X, if I blindly type

    fbset "640x480-60"

    then I get a visible screen back but my monitor tells me that it's
    running at 640x480@119Hz. Same thing for 800x600-60 only this one says
    120Hz.

    Base system is SuSE 7.1 using XFree86 4.0.2. If I switch to 3.3.6 then
    it works OK. If I don't load matroxfb then it also works OK.

    -- 
    Trevor Hemsley, Brighton, UK.
    Trevor-Hemsley@dial.pipex.com
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